وامتناع الخرق والالتئام عليها
And the alleged impossibility of rupture and rejoining in them.
In a classical celestial-sphere model, kharq means tearing or rupture and iltiʾām the reunion of separated parts. The model sometimes declared these changes impossible in heavenly spheres and drew conclusions about their constitution.
The response is to demand grounds for that special claim. An impossibility stipulated within one ancient astronomical framework does not, without further proof, yield a universal claim about all physical bodies.